In Dumas’ method for estimation of nitrogen \( 0.4 \, \text{g} \) of an organic compound gave \( 60 \, \text{mL} \) of nitrogen collected at \( 300 \, \text{K} \) temperature and \( 715 \, \text{mm Hg} \) pressure. The percentage composition of nitrogen in the compound is:
(Given: Aqueous tension at \( 300 \, \text{K} \) = \( 15 \, \text{mm Hg} \))
